Lythrum

Purple Loosestrife

By Megan Vahl

Lythrum salicaria

'Robert'

Easy to grow, these often

invasive plants enjoy moist

places near ponds and

streams. Of the many plants

with this common name, some

are low ground covers, good in

hanging pots, and others are tall

and make good cut flowers.

Best grown in harsh northern climates or dry West where cold or drought prevents it from becoming weedy. Buy in containers or divide for new plants. Some purple loosestrife are so invasive they're illegal in some counties. Even in many states, this plant is illegal to sell because of its destructive capability. It's not just that it's everywhere: it's that it kills native species on which birds feed, and can grow so thick as to trap wildlife.

 

 

Check about restrictions in your area.

 

 

Lythrum salicaria 'Robert'

Type of Plant: Herbaceous Perennial

Flower Color: Purple

Blooming Season: Mid-Summer to Late Summer

Foliage: Evergreen or Deciduous

Height: 2' 6" to 3'

Width: 1' 6" to 2'

Sunlight: Full Sun, Partial Sun

Zones: 4 to 9

 

 

Some other sites to get more information concerning this perennial plant:

Northern Prairie Research Center

http://www.npwrc.usgs.gov/resource/1999/vascplnt/species/lsal.htm

Garden Web

http://www.gardenweb.com/plants/nph-ind.cgi

DNR

http://www.dnr.state.in.us/news-rel/jul16-98.htm

Cornell University Studies

http://www.dnr.cornell.edu/bcontrol/purple.htm

Boston Herald

http://www.bostonherald.com/bostonherald/life/23dirt1.htm

Colorado Weed Management Association

http://www.fortnet.org/CWMA/nonative.htm